72:9=8; 56:8=7; 3·5=15; 2·8=16; 35:7=5; 16:4=4; 9·8=72; 30:6=5; 48:8=6; 4·8=32; 6·7=42; 36:4=9; 36:9=4; 2·9=18; 16:8=2; 3·4=12; 4·5=20; 14:2=7; 5·8=40; 10:5=2.